json

name	json
description	Data format.
license	MIT
metadata	{"author":"vant","version":"1.0"}

JSON

Data format.

---

When To Use

• APIs
• Config files
• Data interchange

---

What To Do

1. Syntax

{
  "key": "value",
  "number": 42,
  "boolean": true,
  "null": null,
  "array": [1, 2, 3],
  "object": {
    "nested": "value"
  }
}

2. Parse

// JavaScript
const data = JSON.parse(string)
const string = JSON.stringify(data, null, 2)

3. Validate

# Python
python -c "import json; json.load(open('f.json'))"

# Node
node -e "JSON.parse(require('fs').readFileSync('f.json'))"

4. Tools

Tool	Use
jq	CLI processing
jsonlint	Validation
jsondiff	Diff

---

Role: JSON Handler
Input: JSON
Output: Data

Data format.